Standard survival after lung adenocarcinoma staging is often assessed by 5-year survival, and the average 5-year survival for each stage of lung adenocarcinoma is about 80% for stage IA, 60% for stage IB, 50% for stage IIA, 40% for stage IIB, 25% for stage IIIA, 5% for stage IIIB, and 1% for stage IV, which means that after 5 years of having lung cancer, an average of 20% of patients with stage IA, 40% of patients with stage IB, 50% of patients with stage IIA, 60% of stage IIB patients, 75% of stage IIIA patients, 95% of stage IIIB patients, and 99% of stage IV patients may die. To put it in a more general way, if there are 100 lung cancer patients in all stages and after 5 years there are on average 80 stage IA patients, 60 stage IB lung cancer patients, 50 stage IIA patients, 40 stage IIB patients, 25 stage IIIA patients, 5 stage IIIB patients, and 1 stage IV patient still alive, it can be seen that the survival expectation of patients with advanced lung cancer is very poor, but it should be noted that in However, it should be noted that the meaning of the word “average” should be fully understood when looking at the above statistical results, because each patient’s specific situation is different.